题目内容
16.________ excited Geoff Marcy most was ________ there were planets in other solar system where life might exist.( )A. | It; if | B. | That; whether | C. | What; whether | D. | What; that |
分析 使Geoff Marcy高兴的是,在太阳系的其他的行星上有生命存在.
解答 答案D.
分析句子结构可知,整个句子的谓语动词为"was","was"之前为主语从句,之后为表语从句;主语从句中动词"excited"之前缺少主语,又不指代人,因此应该用连接代词"What";表语从句中不缺少主、宾、表等主要成分,意思已全面,因而应该用连接词"that"只起连接词作用,无意义,故选D.
点评 本题考查名词性从句.解答此类题目首先要读懂句意和分析句子结构,其次判断是名词性从句中的哪一种从句,然后再分析从句中的成分,如果从句中缺成分且不指代人时一般用what.

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